The 2026 Harley-Davidson® CVO™ Street Glide® ST is engineered as a performance-focused touring motorcycle that integrates a high-displacement V-twin engine, advanced chassis geometry, and a comprehensive suite of electronic systems. The model is configured with precise dimensional measurements, optimized drivetrain ratios, and integrated digital systems that support both long-distance riding and controlled handling. Every specification reflects a structured approach to performance, stability, and rider interface functionality.
High-Output Engine Architecture and Mechanical Configuration
The 2026 Harley-Davidson® CVO™ Street Glide® ST is equipped with a Milwaukee-Eight® 121 High Output engine. This engine has a displacement of 121 cubic inches, equivalent to 1,977 cubic centimeters. The design uses a pushrod-operated overhead valve configuration with hydraulic self-adjusting lifters and four valves per cylinder. This arrangement supports consistent valve timing and reduced maintenance requirements.
The engine features a bore of 4.075 inches and a stroke of 4.625 inches. These measurements contribute to a compression ratio of 11.4 to 1, supporting efficient combustion and controlled power delivery. The fuel system operates through Electronic Sequential Port Fuel Injection, which regulates fuel delivery with precision based on operating conditions.
The lubrication system uses a pressurized dry-sump design, maintaining consistent oil circulation during extended operation. Air intake is managed through a fiberglass washable air cleaner, allowing for reusable filtration. Exhaust gases are routed through a 2-1-2 dual exhaust system with tapered mufflers, designed to balance flow efficiency and exhaust management.
Performance output is rated at 127 horsepower at 4,900 revolutions per minute. Torque output is measured at 145 foot-pounds at 4,000 revolutions per minute. This torque curve supports steady acceleration and sustained output across a wide operating range.
Drivetrain Configuration and Transmission Ratios
The drivetrain is structured to transfer engine output efficiently through a combination of chain and belt systems. The primary drive uses a chain with a 34 to 46 ratio. The final drive uses a belt system with a 30 to 68 ratio, supporting durability and reduced mechanical noise.
The 2026 Harley-Davidson® CVO™ Street Glide® ST is equipped with a 6-Speed Cruise Drive® transmission. The gear ratios are calibrated to maintain engine efficiency across varying speeds. The first gear ratio is 10.233, followed by 7.093 in second gear, 5.268 in third gear, 4.266 in fourth gear, 3.635 in fifth gear, and 3.067 in sixth gear. These ratios allow gradual power distribution and controlled acceleration.
The clutch system is a mechanically actuated 10-plate wet clutch with assist and slip functionality. This design reduces lever effort and supports smoother downshifting by limiting rear wheel slip during deceleration.
Frame Construction and Structural Geometry
The frame is constructed from mild steel using a tubular design. It incorporates a two-piece stamped and welded backbone with cast and forged junctions. The structure includes twin downtubes and a bolt-on rear frame section with forged fender supports. MIG welding is used throughout the frame to ensure structural integrity.
The swingarm is also fabricated from mild steel and consists of a two-piece drawn and welded assembly with forged junctions. This configuration supports rigidity while maintaining flexibility for suspension movement.
Dimensional specifications contribute to the motorcycle’s handling characteristics. The total length is 94.9 inches, and the wheelbase measures 64 inches. The rake angle is set at 26 degrees, and the fork angle is 29.25 degrees. The trail is measured at 6.7 inches. These measurements support directional stability and controlled steering response.
Suspension System and Ride Adjustment Capabilities
The front suspension consists of a 47-millimeter inverted fork system. It provides adjustability for preload, compression damping, and rebound damping. This allows riders to modify suspension response based on load and road conditions.
The rear suspension uses an emulsion shock system with adjustable preload, compression damping, and rebound damping. This configuration supports consistent ride quality and load adaptability.
Suspension travel is measured at 4.6 inches in the front and 3 inches in the rear. These values provide a balance between ride comfort and handling precision.
Ground clearance is measured at 5.3 inches. Seat height is 27.5 inches in the laden condition and 29.1 inches when unladen. These measurements contribute to rider accessibility and stability during low-speed operation.
Wheel and Tire Specifications with Handling Characteristics
The 2026 Harley-Davidson® CVO™ Street Glide® ST is equipped with cast aluminum wheels featuring a 7-spoke design. The front wheel has a diameter of 19 inches and a width of 3.5 inches. The rear wheel measures 18 inches in diameter with a width of 5 inches.
Tire specifications include a 130/60 B19 configuration for the front and a 180/55 B18 configuration for the rear. These tire dimensions support traction and stability during cornering and straight-line travel.
The tire construction uses Dunlop® Harley-Davidson® Series bias blackwall tires. This configuration is designed to provide durability and consistent contact with the road surface.
Braking System and Controlled Deceleration
The braking system includes dual radial-mounted 4-piston calipers on the front wheel and a single axial-mounted caliper on the rear. The front braking system uses dual floating rotors with a diameter of 12.6 inches. The rear rotor measures 11.8 inches in diameter.
Rotor thickness is 0.18 inches at the front and 0.28 inches at the rear. The wave-style rotor design supports heat dissipation and consistent braking performance.
The system includes anti-lock braking functionality as standard. Electronic Linked Braking distributes braking force between the front and rear wheels to maintain stability during deceleration.
Electrical System and Power Distribution
The electrical system is supported by a sealed maintenance-free 12-volt battery rated at 28 amp-hours with 405 cold cranking amps. Charging is handled by a three-phase 58-amp system capable of producing up to 754 watts of output at 13 volts.
The starting system uses a 1.6-kilowatt electric starter motor with solenoid engagement. This configuration ensures consistent engine startup under varying conditions.
Lighting components use LED technology for the headlamp, tail and stop lights, and front and rear turn signals. LED lighting supports reduced power consumption and increased visibility.
A USB-C power outlet rated at 15 watts is integrated into the media storage compartment. This allows for device charging during operation.
Infotainment System and Digital Interface Integration
The 2026 Harley-Davidson® CVO™ Street Glide® ST includes the Skyline™ OS infotainment system. It is displayed on a 12.3-inch full-color TFT screen. The display integrates digital gauges and system information into a single interface.
Audio output is rated at 125 watts per channel and is delivered through two 6.5-inch speakers mounted in the fairing. The system supports AM and FM radio functionality, as well as USB media input.
Bluetooth® connectivity enables hands-free phone operation and media streaming. Apple CarPlay® compatibility is supported through both wired and wireless connections.
Navigation is integrated into the system and operates through embedded GPS functionality. The interface also provides vehicle data such as air temperature and oil pressure.
Rider Safety Systems and Electronic Control Features
The 2026 Harley-Davidson® CVO™ Street Glide® ST incorporates multiple electronic safety systems designed to maintain stability and control. Anti-Lock Braking, Electronic Linked Braking, and Traction Control are included as standard systems.
The Drag-torque Slip Control System regulates engine braking to prevent rear wheel instability. Vehicle Hold Control assists during stops by maintaining brake pressure on inclines. Tire Pressure Monitoring provides real-time tire data to the rider.
Cornering-specific systems enhance control during lean conditions. These include Cornering Anti-Lock Braking, Cornering Electronic Linked Braking, Cornering Traction Control, and Cornering Drag-Torque Slip Control. These systems adjust performance parameters based on lean angle and riding conditions.
Lean angles are measured at 31 degrees for both left and right sides. This allows for controlled cornering capability within defined limits.
Capacity, Weight, and Operational Specifications
Fuel capacity is measured at 6 gallons, with a reserve capacity of 1 gallon. Oil capacity with filter is 5 quarts. Transmission capacity is 1 quart, and the primary chain case holds 1.1 quarts. Coolant capacity is 0.82 quarts.
The 2026 Harley-Davidson® CVO™ Street Glide® ST has a shipping weight of 782 pounds and a running weight of 816 pounds. The gross vehicle weight rating is 1,360 pounds. Front axle weight rating is 500 pounds, and the rear axle weight rating is 927 pounds.
Luggage capacity is measured at 2.42 cubic feet, supporting storage requirements for extended travel.
Fuel economy is estimated at 44 miles per gallon under combined city and highway conditions. This supports extended riding distances between refueling intervals.
Schedule a Test Ride at Speedway Harley-Davidson®
At Speedway Harley-Davidson® within Concord, NC, we provide the opportunity to examine the 2026 Harley-Davidson® CVO™ Street Glide® ST in detail. This model combines a high-output engine, calibrated drivetrain ratios, and advanced electronic control systems that can be assessed during a structured test ride. The suspension adjustability, braking precision, and infotainment interface can be evaluated directly through operation. Riders can observe how the torque delivery and transmission ratios function across varying speeds. Schedule a test ride to review the motorcycle’s technical systems and determine how its specifications align with your riding requirements.
